Top similar games like Just Fish: Idle Aquarium:

Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!

A happy aquarium that lives at the bottom of your screen! Tiny Aquarium is a social idle simulator that keeps growing, even when offline. Hatch, sell fish, decorate, go fishin’, and visit your friends’ aquariums with bite-sized daily sessions.

Cozy Island Idle is a chill fishing idle game where you catch all sort of fantasy fishes to showcase them in an Aquarium to sell them to turn a profit and customize your aquarium and island.

Machorium - Muscle Aquarium Simulator - is a relaxing idle and sandbox game where you can unwind and have fun. Use points generated by cute little decorative muscle men to unlock various items and create your ideal muscle aquarium, Machorium.

Ribbit Ranch is a cozy and relaxing idle game. Collect frogs and raise them in real time, then sell them to earn a profit! Customize your habitats by filling it with decorations, rare frog species and ultra-rare special frogs!

Little Aquarium is a relaxing idle game where you grow your own underwater world. Collect rare fish, discover vibrant color variants, and decorate your dream tank!

Joyquarium is a relaxing casual fish-raising game. Buy various cute fry and sell them at a high price after they grow up. With the money you earn, you can purchase aquatic plants, driftwood, scenery stone, etc. to decorate your tank (you can freely adjust the color, size, and position).

Flutterfield is a cozy and relaxing idle game. Buy butterflies and raise them in real time, or catch fully grown ones yourself. Unlock, upgrade, and customize habitats while filling your collection with real-life butterfly species!

Watch and play with quirky critters as they generate loads of money for you in a unique idler/creature collector hybrid.

Cast n Chill is a cozy idle (and active) fishing game where you explore serene lakes, rivers, and oceans. Catch rare fish, upgrade your gear and reel in legendary catches - all with your loyal companion by your side.

Croakoloco is a relaxing frog collecting idle game. Watch them jump, croak, and eat delicious flies. Grow frogs, feed frogs, or take control of one in “Froggy Mode” for a more active play style!

Whimsy Koi is a cozy idle game where you manage calming koi ponds. Collect various whimsical koi fish and decorate your ponds however you want. Just relax and enjoy the tranquil experience.

Relax and catch fish in a beautiful environment. Hire skilled crewmates, invest in lucrative buildings, unlock many boats & upgrades. Dive into the challenge of the fishing mini-game for an interactive experience unlike any other!

Chonkers is a cozy and relaxing idle game. Adopt the cutest fur balls and watch them ramp up the chonk scale as you play with them. Find them a new family. They’ll pay A LOT for your hefty chonker! Complete your collection by finding all the breeds and the rarest space cats!

AquaCorner is a relaxing 3D idle simulation that brings a charming aquarium to your desktop corner! Collect cute fish, nurture them, and decorate their habitat with colorful items. Enjoy this cozy, atmospheric experience and build your dream underwater ecosystem.

"Lofi Aquarium" is a gamified focus tool designed to enhance concentration and relieve stress. As you work, a group of adorable baby fish will keep you company, all set to soothing lofi music. Over time, the fish grow and can be sold for profit. 

A small clicker game about destroying ducks! Collect 40+ ducks, upgrade all your stats, and repeat! Includes normal & master ducks, timed events, tons of upgrades, rebirths, achievements, and more!

An idle desktop aquarium game where you buy, feed, and breed fish to discover new species with unique rarities and tiers. Decorate cozy tanks and customize your desk with cute items. Earn money just by caring for your fish, even while you work or relax!

An aquarium sim you can keep anywhere on your screen while you do other things. Buy endless upgrades, apply trait modifiers, and complete your collection of rare, epic and legendary fish! Buy today or give a gift to someone!

🦕 Dino Park is a cozy idle game about collecting dinosaurs! 🦖 Watch your dinosaurs level up in real time, earning more money for your park. Create the perfect environment for your dinosaurs to increase the chance of discovering super rare variants! Can you collect them all?

Mango’s Fisharium is a short incremental game about catching unique fishes and displaying them in the Fish Aquarium. Designed to be completed in around 4 hours.

A relaxing idle game about fishing. Discover dozens of fishes and treasures! Spend your resources on growing your operation and unlocking new varieties of underground life! Achieve goals, buy skills, and mutate rare fish to improve your profits!

Cozy Littlequarium is a relaxing aquarium simulator that sits at the bottom of your screen! Take care, breed them, collect and decorate!

Watch a tiny diver explore the ocean in the corner of your screen. Collect sea creatures, upgrade equipment, and unlock new diving spots.

Fishing Tale is a relaxing fishing adventure game where you catch over 40 unique fish across diverse environments like oceans, lakes, and rivers. Customize your character, track your catches in a detailed journal, and enjoy the soothing sounds of nature.

Topac Battle is a cozy and relaxing idle game. Buy Topac Ball, Reveal Cozy Monsters and Level them up, Sell for a higher rarity, and become the master of the chill battle scene. From a simple park to your dream setup with rare exotic monster and ultra-rare color variants!

A cozy idle fishing game where you play as an adorable alligator angler. Designed to run in the corner of your screen, it's the perfect companion for work or study—featuring rich animations that make every moment feel like watching a charming short film.

Easy Bubbles is a relaxing aquarium simulation filled with cute sea creatures. Manage your aquarium with click and idle mechanics, collect resources and have a pleasant experience in the colorful and peaceful underworld.

Fish will come, fish will go. Take photos, collect beans, decorate your seascape, then relax or do other things while your friends swim by in this calming side-idler.

A chill idle-fishing desktop toy in the corner of your screen. Buy upgrades, catch rare fish, and customize your avatar at your own pace!

Wing Haven is a relaxing idle game about building cozy bird sanctuaries. Collect rare and exotic feathered friends, give them plant shelter, and watch them grow in real-time! Progress from a basic enclosure to a beautiful nature preserve in old-growth forest, desert oasis, or wetland climates!

Build and customize your own arcane aquarium in this cozy collection/idler game. Use your magic to summon juvenile cute creepy fish. Tend to them and watch them grow. Make discoveries, expand your collection, decorate your tanks with art and plants.

Immerse yourself in the ultimate relaxing aquarium experience. Watch fish glide gracefully through a serene, ever-changing tank—no setup, no stress, just pure tranquility. Enjoy soothing visuals and ambient ASMR sounds as your aquarium comes to life effortlessly. Your peaceful escape awaits!

AquaFantasia is an engaging and soothing idle game. Begin your aquatic adventure by purchasing a variety of small fry, raise and sell them. You can customize fantasy oceans with rare fishes to create your own aquarium.

Hatch mystery eggs, watch fish grow to reveal their hidden rarity, and collect the rarest ones in a cozy aquarium you can relax with in the background.

Let's face it, we all were once kids. There was a time when we wanted pets, and there was a moment when we wanted to keep a pet fish. Some of us got what they wanted; some didn't. Some cried, some forgot. Aquario is the game where you can live through this traumatic experience again, or anew.